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From: "Ian Warner" <iwarner@openfox.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Subject: java.lang.UnsatisfiedLinkError: no c in java.library.path
Date: Thu, 15 May 2003 14:11:41 -0500
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Hi group:

Any help with the follwoing error would be greatly appreciated

2003-05-15 12:50:15 StandardContext[/hello-jaxrpc]: Exception sending =
context initialized event to listener instance of class =
com.sun.xml.rpc.server.http.JAXRPCContextListener
java.lang.UnsatisfiedLinkError: no testc in java.library.path

starting the application but can't find "testc.dll" is the problem but =
where should i put it under the tomcat directory structure? i have run =
out of places to try - i've tried WEB-INF, WEB-INF/classes, =
shared/classes and even tried puttin it jar format under WEB-INF/lib and =
shared/lib but to no avail. Here's the xml that starts the app if it =
helps, it is called hello-jaxrpc and resides in webapps (there's no =
entry in the server.xml)

<Context path=3D"/hello-jaxrpc" docBase=3D"../webapps/hello-jaxrpc" =
debug=3D"3" privileged=3D"true">

  <Logger className=3D"org.apache.catalina.logger.FileLogger"
          prefix=3D"hello-jaxrpc_log." suffix=3D".txt" =
timestamp=3D"true"/>

</Context>

Here's what i'm trying to do. I have a client that is sending a msg to a =
simpe tomcat server app called hello.
=20
package hello;
public class HelloImpl implements HelloIF {

 public String message =3D "Hello ";

    public String sayHello(String s) {
    return message + si;
    }
}
The above server code works fine, the client sends a string, this server =
sends back hello + string to the client, so far so good.

Now the trouble comes -  i'm trying to call a "c" class in testc.dll =
from the above java class (modified below) but get =
"java.lang.UnsatisfiedLinkError: no testc in java.library.path" in the =
hello-jaxrpc_log i set up for the application. How do I set the =
java.library.path ? Or what's the default path? I thought is was =
webapps/WEB-INF/classes

Here the modifed code

package hello;
public class HelloImpl implements HelloIF {

 public String message =3D "Hello ";
 public int i=3D0;

    public String sayHello(String s) {
    i =3D new HelloImpl().gemsg(); // added call to native code
    return message + s + i;
    }
    public native int getmsg(); // getmsg() is a c routine compiled into =
testc.dll, all it does is return an integer.

    static {
        System.loadLibrary("testc"); // this fails when the application =
is being loaded by tomcat, i never even get to run the client
    }
  }



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